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The Difference in Location between Traumatic Cerebral Microbleeds and Microangiopathic Microbleeds Associated with Stroke
Author(s) -
Imaizumi Toshio,
Miyata Kei,
Inamura Shigeru,
Kohama Ikuhide,
Sang Nyon Kim,
Nomura Tatsufumi
Publication year - 2011
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/j.1552-6569.2011.00593.x
Subject(s) - medicine , corpus callosum , basal ganglia , stroke (engine) , cerebrum , thalamus , cardiology , pathology , radiology , central nervous system , mechanical engineering , engineering
BACKGROUND AND PURPOSE Microbleeds (MBs) are low‐intensity spots on gradient echo T2*‐weighted MRI frequently associated with cerebral microangiopathies resulting in stroke. MBs can also be caused by cerebral axonal injuries. We compared the location of MBs associated with cerebral microangiopathies with those associated with trauma.METHODS T2*‐weighted MRI identified traumatic MBs (t‐MBs) in 23 (6 females; 38.7 ± 25.8 years old) of the 312 patients with head trauma consecutively admitted to our hospital between March 2003 and March 2009. We prospectively examined for the presence of microangiopathic MBs (m‐MBs) in the 131 patients (59 females; 65.2 ± 9.2 years old) admitted consecutively for stroke (May ‐December 2004) as controls.RESULTS We identified a total of 145 t‐MBs and 504 m‐MBs. t‐MBs were frequently located in the mid portion of the subcortical area of the cerebrum, above the corpus callosum in axial slices, and were absent from the basal ganglia. In contrast, m‐MBs were frequently located within the basal ganglia or thalamus.CONCLUSION There are substantial differences in locations of MB development in trauma patients in comparison to stroke patients.